Commitments and Contingencies (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jul. 25, 2014 action
Commitments and Contingencies Disclosure [Abstract]
Aggregate minimum annual rental commitments under operating leases in 2015	$ 128
Aggregate minimum annual rental commitments under operating leases in 2016	90
Net rent expense	$ 291us-gaap_OperatingLeasesRentExpenseNet	$ 278us-gaap_OperatingLeasesRentExpenseNet	$ 298us-gaap_OperatingLeasesRentExpenseNet
Number of causes of action				3

Loss Contingency, Causes of Action, Number

No definition available.

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- Details

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- Definition

Future rental payments receivable within one year of the balance sheet date under an operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718

+ Details

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- Definition

Future rental payments receivable within the second year from the balance sheet date under an operating lease.

+ References

+ Details

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

+ Details

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